carbide removal from sawblades

[tdean]

I had some dado inserts without the outside blades, with 2 large carbide teeth on them. I dont have a torch so I put the tooth in the vice and sort of snapped the braised joint, though some of them crumbled a bit. Does anyone use a torch to take off the carbide inserts off of sawblades? Is it worth it? There were some high prices advertised months ago.

[PistoneScrapProcessing]

When I was 14 I scrapped a truckload of them 40,000 lbs of blades took a week to clean them. We took a metal table and welded a piece of pipe on it put the blade on and a metal bucket under it. lit the torch heated up the carbide hit it with the hammer. carbide falls into bucket. repeat. repeat. repeat. We just scrapped 214 lbs of carbide last week though. 9 dollars a pound. Couldnt tell u what it was on though just came in the yard in a mixed load was some sort of paddle though.

[tdean]

I meant to ask if you need the heat from an oxy acetylene torch, or propane/O2 ? Is it worth trying with a regular propane plumbers torch?

[PistoneScrapProcessing]

it needs to get it hot enough to break the silver soder betwwen the steel and the carbide no clue if a regular plumbers propane torch would work. try it and see if it works if not try the regular oxy/propane torch.

[Ran440]

You can also try a plumbers style torch with map gas. Gets way hotter faster than propane.